大学英语 修订本 精读 第2册PDF电子书下载

Unit One 1

Unit Two 24

Progress Check One 44

Unit Three 53

Unit Four 80

Progress Check Two 103

Unit Five 112

Unit Six 136

Progress Check Three 158

Unit Seven 168

Unit Eight 192

Progress Check Four 218

Unit Nine 228

Unit Ten 251

Progress Check Five 274